Kathy Cash, daughter of the late Johnny Cash, walked out of a screening of the forthcoming bio-pic Walk The Line claiming that it portrayed her mother in a less-than-favourable light.

Kathy, whose mother Vivian Liberto Distin was married to Cash for 13 years, said:

"My mom was basically a nonentity in the entire film except for the mad little psycho who hated his career."

Kathy claims such a representation is far from the truth, telling the BBC that she supported Cash's career, until his drug habits became too much.

The film, starring Joaquin Phoenix and Reese Witherspoon as Johnny and June Carter-Cash respectively, is released in February. Ginnifer Goodwin plays Vivian, while Kathy is played by child actor Kerris Dorsey. Johnny Cash died of cancer in 2003.